Published Tuesday, September 15, 2026 at 10:00 AM PT

BLUF: Apple released iOS 27 and iPadOS 27 on September 14, 2026, containing security patches addressing 200 reported vulnerabilities across iOS and macOS. All iPhone and iPad users must update immediately; CVE details and severity ratings are at https://support.apple.com/en-us/100100.
DETAILS:
- iOS 27, iPadOS 27, macOS 27, watchOS 27, visionOS 27, and tvOS 27 released September 14, 2026
- Release patches 200 vulnerabilities across iOS 27 and macOS Golden Gate 27 (per SecurityWeek)
- Consistent with pattern: iOS 26.5.2 patched 25+ flaws; prior releases included dozens of WebKit and system vulnerabilities
- Official vulnerability list and CVE details available at https://support.apple.com/en-us/100100 (full scope not reproduced here)
- Update deploys via Settings > General > Software Update on affected devices
IMPACT:
- iPhone: 15 Pro/Pro Max, 16+, Air, Duo all affected
- iPad: M1 or later; iPad mini with A17 Pro chip affected
- Apple Watch: Series 9, Ultra 2, SE 3 or later affected
- Regional exclusion: iPhone/iPad users in EU cannot access Siri AI beta due to Digital Markets Act; macOS and Vision Pro users unaffected by restriction
- Age gating: Users under 13 not permitted on Siri AI beta but must still apply OS patches
RECOMMENDED ACTIONS:
- Do now: Install iOS 27 / iPadOS 27 / macOS 27 on all devices via automatic update or manual Settings > Software Update
- Verify: Cross-reference device model against supported list above; check https://support.apple.com/en-us/100100 for any CVE blocking issues in your environment
- Alert threshold: Watch for exploit announcements in first 48 hours; unpatched devices are highest risk
SOURCES:
- Apple (September 14, 2026)
- SecurityWeek: “Apple Patches 200 Vulnerabilities With New iOS 27, macOS Golden Gate 27 Releases”
- Apple Security Updates: https://support.apple.com/en-us/100100
Recent high-severity events at publish time:

